/*
 * Copyright 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settingslib.spa.framework.compose

import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.merge
import kotlinx.coroutines.flow.receiveAsFlow

/**
 * A flow which result is overridable.
 */
class OverridableFlow<T>(flow: Flow<T>) {
    private val overrideChannel = Channel<T>()

    val flow = merge(overrideChannel.receiveAsFlow(), flow)

    fun override(value: T) {
        overrideChannel.trySend(value)
    }
}
